Subsequent Events (Details) (USD $) |
1 Months Ended | 3 Months Ended | 9 Months Ended | |||
|---|---|---|---|---|---|---|
Oct. 31, 2011 |
Sep. 30, 2011 |
Sep. 30, 2010 |
Sep. 30, 2011 |
Sep. 30, 2010 |
Nov. 28, 2011 |
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| Subsequent Events (Textual) [Abstract] | ||||||
| Dividends declared per share | $ 0.20 | $ 0.20 | $ 0.13 | $ 0.53 | $ 0.33 | |
| Cash dividends, date payable | Nov. 28, 2011 | |||||
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- Definition Cash dividends, date payable.
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- Definition Subsequent events.
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- Definition Aggregate dividends declared during the period for each share of common stock outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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